Mark was recently off shooting for the new Transformers movie, and he literally woke up one day to an injured neck! It wasn't even like he was hurt doing any of those insane stunts with those giant robots!

Here's what he told an interviewer about it, as he was wearing a brace (artist's rendering above):

'This is an icepack. I hurt my neck in Hong Kong in October. I don't really know what happened because it wasn't one specific thing. I woke up in the morning and felt shitty and couldn't move my neck. So, I've been rehabbing and doing corrective exercises … it's getting better.'

And it definitely wasn't being on set for Lone Survivor that hurt him either, because of this:

Oh, I got banged up pretty good on that one, too. But, that was well over a year ago. But you don't really think about those sort of things because you're in the moment and 42 days is not a long time.

We're just glad he's on the mend!!

Can you imagine trying to shoot an action movie with an injured neck?? That'd be AWFULSAUCE!